nominal vs formal

nominal and formal both are nouns.

Word	Noun	Adjective	Verb	Adverb
nominal	Yes	Yes	No	No
formal	Yes	Yes	No	No

nominal (noun)	formal (noun)
a phrase that can function as the subject or object of a verb	a gown for evening wear
	a lavish dance requiring formal attire

nominal (adjective)	formal (adjective)
of, relating to, or characteristic of an amount that is not adjusted for inflation	being in accord with established forms and conventions and requirements (as e.g. of formal dress)
pertaining to a noun or to a word group that functions as a noun	(of spoken and written language) adhering to traditional standards of correctness and without casual, contracted, and colloquial forms
relating to or constituting or bearing or giving a name	refined or imposing in manner or appearance; befitting a royal court
existing in name only	logically deductive
insignificantly small; a matter of form only (`tokenish' is informal)	represented in simplified or symbolic form
named; bearing the name of a specific person	characteristic of or befitting a person in authority